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Mushroom Swiss Cheeseburger Slider
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4.65 from 14 votes

Mushroom Swiss Sliders

The BEST slider you will ever try! These are next-level amazing!
Prep Time20 minutes
Cook Time25 minutes
Total Time45 minutes
Course: dinner, Game Day, Main Course
Cuisine: American
Keyword: mushroom swiss sliders
Servings: 12 sliders
Calories: 332kcal
Author: Amanda Rettke

Ingredients

HAMBURGER

  • 1 tablespoon seasoned salt
  • 1 tablespoon McCormick Hamburger Seasoning
  • ¼ teaspoon kosher salt
  • ¼ teaspoon pepper
  • 1 tablespoon canola oil
  • ½ cup yellow onion, diced
  • 1 teaspoon garlic
  • 1 pound ground beef
  • ½ teaspoon Worcestershire sauce

MUSHROOM SWISS SAUCE

  • ½ cup (1 stick / 113 g) butter
  • 8 ounces mushrooms, sliced
  • ¼ cup (60 g) beef broth
  • ¼ cup (61.25 g) milk
  • ½ cup (56.5 g) Swiss cheese, shredded
  • 1 pinch salt and pepper

SEASONED BUTTER

  • ¼ cup (½ stick / 57 g) butter, melted
  • 1 teaspoon garlic salt
  • 2 teaspoons sesame seeds

SLIDERS

Instructions

  • Preheat the oven to 350°F and spray a 9x13-inch baking dish with nonstick spray.

HAMBURGER

  • In a small bowl, mix together the seasoned salt, hamburger seasoning, salt, and pepper. Set aside.
  • To a large skillet over medium heat, add oil. Once hot, add the onions and garlic. Cook 1-2 minutes.
  • Add the ground beef to the pan. Break up the meat with a wooden spoon.
  • Add the Worcestershire sauce and sprinkle with the seasoning mixture.
  • Cook for about 8-10 minutes, or until no pink remains in the meat. Remove from heat and drain meat.

MUSHROOM SWISS SAUCE

  • In a medium saucepan over medium heat, melt butter.
  • Add mushrooms and cook for about 5-10 minutes. Add in beef broth and milk.
  • Reduce heat and slowly add cheese. Whisk constantly until the cheese is completely melted.
  • Add in cooked hamburger, and stir to combine.

SEASONED BUTTER

  • In a small bowl, mix together the melted butter, garlic salt, and sesame seeds. Set aside.

SLIDERS

  • Split your rolls in half, and place the bottom halves in the prepared baking dish.
  • Add 6 slices of Swiss cheese, followed with the hamburger mixture, and then the second layer of 6 slices of Swiss cheese.
  • Place the top halves of the buns on top and brush the tops of the rolls with the melted butter mixture.
  • Cover the dish with aluminum foil and bake for 20 minutes, or until the cheese is hot and bubbly.
  • Remove foil, and bake for an additional 5 minutes (or until the tops of the sliders turn a golden brown).
  • Remove from oven, slice and serve.

Nutrition

Serving: 12g | Calories: 332kcal